Measuring roller



Sept.- 28 1926.

.1.L. WHEELER MEASURING ROLLER F11e 1 sept; 29, 1921 30 the 'Jenn Lfwnnnnna, or tours;

asserts.; Ass-leuca To man rame, or sr. 'Lou1s','Ii/rissetnar, A

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rtnastraneiaar 'cor conformaron or` DELAWARE@ caasunrns Roanne.

i Application 1ediSeptember 29, 1921i. Serial No. 504;()6L

This inventienrclates to fabric measuring-and Vcost computing machines Aand pas :ticul'arly to the type of macliine which enr` `bodies Iinitsfconstruction a measuring? roller againstwliih the-fabric iis pressedan-d wjrheh :is ratated by the :fabric as it is pulled through or pastthe mac'hine. @ne of fthe difficulties 'which is encountered struction fof suchilnachines, is to ars-ure aecuracy in relatively longl'measurenfnei is, Thewgeneral objectofflthisgmventlon :is to produce a measuring roller which 'Willoperate to insure accuracy Vin the measurements made by the machine. .l Further objects of the invention will pear hereinafter.

The invention consists in the characteristic features of construction of the 1oller described in the follovving specification all of which contribute to produce an accurate and eificient measuring roller.

In the drawing',

Figure l is a side elevation of the measuring roller embodying my invention; 2 Figure 2 is a longitudinal section;

Figure 3 is an end elevation of the measuring roller;

Figure 4 is a diagrammatic view illustrating a common type of machine in which measuring roller may be employed; Figure 5 is a cross section in detail upon an enlarged scale and clearly illustrating details of the invention; and

Figure 6 is a developed plan upon an enlarged scale showing a portion of the face of the roller.

A common type of machine in which my measuring roller may be employed is illustrated in Figure 4. It comprises a casing 1 having a gap or throat 2 through which the fabric to be measured is pulled on the line indicated by the dotted line In passing through the gap 2 the fabric is held against the upper face of the measuring roller 4 by a presser roller 5. According to my invention I construct the measuring roller 4 of metal such as aluminum. The shaft that is driven by this roller. actuates the indicating mechanism Which is displayed at the upper face 7 ofthe instrument. The shaft of the rollerl is not illustrated.

In order that the roller may be given a rotation by the fabric VWhich will be an accurate index of the amount of fabric that moves. past the roller during the measuring EJI in 'the kconjpattern `or 4a diffe-rent degree of 4movement 'I providel the peripheral; face `ot' the measuring roller Witha. plurality of zones extending circumferentially about 'the same, and I provide these zonesl With sur- -faces `or faces of different specic character.

.I `'prefer to provide three Jofv thesev zones.

They are indicated by `the nui'nerals 8, 9

mid-- the-roller and the Zones 9 end. vThe Adifferent speciiic -and10,the Zone 8 being disposed in the idle portion of and 10 at each r-charactenof. surfacemay be produced by knurling the zones according to awdierendegree of co-arsen-ess foi-f pattern. f In-the present instance I'simply make the knurling of the middle Zone 8 coarser than the knurling of the tWo zones 9 and l0; and 9 and 10, for example, the zone 9 coarser than the zone 10. y

Figure 5 illustrates7 upon a magnified scale, the character of this knurling. It is simply produced by impressing or cutting a plurality of parallel, V-shaped helical grooves or cuts an the face of the roller disposed in two sets extending across or trans versely to each other. The grooves of the zones 9 and 10 are, of course, shallower than those of the zone 8.

With a roller having its surface provided With zones of different degrees of knurling, it is found that very accurate measurements may be effected. This increased accuracy in measurements effected by the use of my i1 proved roller (having its surface knurled to various degrees of fineness, as above described), is due to the fact that there is a compensation provided for variations in the gripping contact bet-Ween the different zones of the roller. That is to say, a roller having the same character of knurling throughout may be rotated at. slightly varying distances in the passage of the goods over the roller, clue to the action of the parallel rolls of threads, as in linensrand the like, or of the pile, as in velvets, plush and the like, upon the knurls or projections of the roller, which are usually formed by helical grooves. It will readily be seen that if one size of knurling Would tend to be affected in this manner by the surface of the .fabric drawn over it, this tendency Would I make either of the Zones of knurling.. The

intermediate size of knurling would simply afford a somewhat Wider range of accommodation of the linurle-d surface to the fabric. The variation in measurements with a roller` having uniform knurling is, of course, more pronounced in comparing the measurements of different characters of fabric, and my improved roller thus provides a relatively Wide range of accommodation to prevent variation in the movement of the roller relative to the movement of the fabric thereover in measuring various characters of fabrics.

l. In a fabric measuring machine, a measuring roller mounted so as to be rotated by contact with the fabric to be measured, and having a plurality of contiguous Zones extending circumferentially about the same, said Zones having gripping surfaces of different degrees of coarseness.

2. In a fabric measuring machine, a measuring roller mounted so as to be rotated by contact with the fabric to be measured and having a plurality of contiguous hnurled faces thereon, said knurle-d faces being different from each other, as respects the degree of knurling.

3. In a fabric measuring machine, a measuring roller mounted so as to be rotated by contact with the fabric to be measured and having knurled faces disposed in contiguous circumferential Zones, the knurling of said faces being different in degree from cach other.

L In a fabric measuring machine, a measuring roller mounted so as to be rotated by contact with the fabric to be measured, the face of said roller being divided into a plurality of knurled faces disposed in contiguous circumferential Zones on the roller.A the knurling of said facesbeing different from each other, and each hnurled face having a plurality of cuts extending in different directions on the face of the roller.

In testimony whereof, I have hereunto set my hand.

JOHN L. IVHEELER. 

